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Finding the Fourth Proportional to 174,039.76, 239,725.65 and 122,963.84

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Solution

The fourth proportional to 174,039.76, 239,725.65 and 122,963.84 is: 169,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,039.76 : 239,725.65 = 122,963.84 : x
  2. Step 2: Convert to fraction form
    174,039.76/239,725.65 = 122,963.84/x
  3. Step 3: Cross multiply
    174,039.76x = 239,725.65 × 122,963.84
  4. Step 4: Simplify right side
    174,039.76x = 29,477,586,470.50
  5. Step 5: Solve for x
    x = 29,477,586,470.50/174,039.76
  6. Step 6: Final answer
    x = 169,372.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.